Add limits for users (Mapping, Entity, DAO, Model, DB).

Refactoring.
Add method for create button of Users to check if users not violating with limits.

libreplan-business/src/main/java/org/libreplan/business/common/daos/ILimitsDAO.java

@@ -0,0 +1,20 @@
+package org.libreplan.business.common.daos;
+
+import org.libreplan.business.common.entities.Limits;
+
+import java.util.List;
+
+/**
+ * DAO interface for the <code>Limits</code> entity.
+ * Contract for {@link LimitsDAO}
+ *
+ * Created by
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
+ * on 17.12.2015.
+ */
+public interface ILimitsDAO extends IGenericDAO<Limits, Long> {
+    List<Limits> getAll();
+
+    Limits getUsersType();
+    Limits getWorkersType();
+}

libreplan-business/src/main/java/org/libreplan/business/common/daos/LimitsDAO.java

@@ -0,0 +1,40 @@
+package org.libreplan.business.common.daos;
+
+import org.libreplan.business.common.entities.Limits;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+/**
+ * DAO for {@link Limits}
+ *
+ * Created by
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
+ * on 24.09.15.
+ */
+
+@Repository
+public class LimitsDAO extends GenericDAOHibernate<Limits, Long> implements ILimitsDAO {
+
+    @Override
+    public List<Limits> getAll() {
+        return list(Limits.class);
+    }
+
+    @Override
+    public Limits getUsersType() {
+        List<Limits> list = list(Limits.class);
+        for (Limits item : list)
+            if (item.getType().equals("users")) return item;
+        return null;
+    }
+
+    @Override
+    public Limits getWorkersType() {
+        List<Limits> list = list(Limits.class);
+        for (Limits item : list)
+            if (item.getType().equals("workers")) return item;
+        return null;
+    }
+
+}

libreplan-business/src/main/java/org/libreplan/business/common/entities/Limits.java

@@ -0,0 +1,34 @@
+package org.libreplan.business.common.entities;
+
+import org.libreplan.business.common.BaseEntity;
+
+/**
+ * Limits entity, represents a limits for any functionality.
+ * This class is intended to work as a Hibernate component.
+ * It represents the limit that can be modified only in database.
+ *
+ * Created by
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
+ * on 17.12.2015.
+ */
+public class Limits extends BaseEntity{
+
+    private String type;
+
+    private Long value;
+
+
+    public String getType() {
+        return type;
+    }
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public Long getValue() {
+        return value;
+    }
+    public void setValue(Long value) {
+        this.value = value;
+    }
+}

libreplan-business/src/main/java/org/libreplan/business/email/daos/EmailTemplateDAO.java

@@ -30,7 +30,7 @@ import java.util.List;
  *
  * Created by
  * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
- * on 24.09.15.
+ * on 24.09.2015.
  */
 @Repository
 public class EmailTemplateDAO extends GenericDAOHibernate<EmailTemplate, Long> implements IEmailTemplateDAO{

libreplan-business/src/main/java/org/libreplan/business/email/daos/IEmailTemplateDAO.java

@@ -30,7 +30,7 @@ import java.util.List;
  *
  * Created by
  * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
- * on 29.09.15.
+ * on 29.09.2015.
  */
 public interface IEmailTemplateDAO extends IGenericDAO<EmailTemplate, Long>{
 

libreplan-business/src/main/java/org/libreplan/business/email/entities/EmailTemplate.java

@@ -29,7 +29,7 @@ import org.libreplan.business.settings.entities.Language;
  *
  * Created by
  * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
- * on 29.09.15.
+ * on 29.09.2015.
  */
 public class EmailTemplate extends BaseEntity {
 

libreplan-business/src/main/java/org/libreplan/business/users/daos/IUserDAO.java

@@ -35,6 +35,7 @@ import org.libreplan.business.users.entities.User;
  *
  * @author Fernando Bellas Permuy <fbellas@udc.es>
  * @author Manuel Rego Casasnovas <rego@igalia.com>
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
  */
 public interface IUserDAO extends IGenericDAO<User, Long>{
 
@@ -102,4 +103,5 @@ public interface IUserDAO extends IGenericDAO<User, Long>{
 
     List<User> findAll();
 
+    Number getRowCount();
 }

libreplan-business/src/main/java/org/libreplan/business/users/daos/UserDAO.java

@@ -25,6 +25,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.hibernate.Criteria;
+import org.hibernate.criterion.Projections;
 import org.hibernate.criterion.Restrictions;
 import org.libreplan.business.common.daos.GenericDAOHibernate;
 import org.libreplan.business.common.exceptions.InstanceNotFoundException;
@@ -179,4 +180,8 @@ public class UserDAO extends GenericDAOHibernate<User, Long>
         return list(User.class);
     }
 
+    @Override
+    public Number getRowCount() {
+        return (Number) getSession().createCriteria(User.class).setProjection(Projections.rowCount()).uniqueResult();
+    }
 }

libreplan-business/src/main/resources/libreplan-business-spring-config.xml

@@ -100,6 +100,9 @@
                 <value>
                     org/libreplan/business/logs/entities/Logs.hbm.xml
                 </value>
+                <value>
+                    org/libreplan/business/common/entities/Limits.hbm.xml
+                </value>
             </list>
         </property>
     </bean>

libreplan-business/src/main/resources/org/libreplan/business/common/entities/Limits.hbm.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
+<hibernate-mapping package="org.libreplan.business.email.entities" default-access="field">
+
+    <class name="org.libreplan.business.common.entities.Limits" abstract="true" table="limits">
+
+        <id name="id" access="property" type="long">
+            <generator class="hilo" >
+                <param name="max_lo">100</param>
+            </generator>
+        </id>
+
+        <property name="type" column="type"/>
+        <property name="value" column="value" type="long"/>
+
+    </class>
+
+</hibernate-mapping>

libreplan-webapp/src/main/java/org/libreplan/web/common/ILimitsModel.java

@@ -0,0 +1,19 @@
+package org.libreplan.web.common;
+
+import org.libreplan.business.common.entities.Limits;
+
+import java.util.List;
+
+/**
+ * Contract for {@link Limits}
+ *
+ * Created by
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
+ * on 17.12.2015.
+ */
+public interface ILimitsModel {
+    List<Limits> getAll();
+
+    Limits getUsersType();
+    Limits getWorkersType();
+}

libreplan-webapp/src/main/java/org/libreplan/web/common/LimitsModel.java

@@ -0,0 +1,45 @@
+package org.libreplan.web.common;
+
+import org.libreplan.business.common.daos.ILimitsDAO;
+import org.libreplan.business.common.entities.Limits;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+/**
+ * Model for operations related to {@link Limits}.
+ *
+ * Created by
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
+ * on 17.12.15.
+ */
+
+@Service
+@Scope(BeanDefinition.SCOPE_PROTOTYPE)
+public class LimitsModel implements ILimitsModel {
+
+    @Autowired
+    private ILimitsDAO limitsDAO;
+
+    @Override
+    @Transactional(readOnly = true)
+    public List<Limits> getAll() {
+        return limitsDAO.getAll();
+    }
+
+    @Override
+    @Transactional(readOnly = true)
+    public Limits getUsersType() {
+        return limitsDAO.getUsersType();
+    }
+
+    @Override
+    @Transactional(readOnly = true)
+    public Limits getWorkersType() {
+        return limitsDAO.getWorkersType();
+    }
+}

libreplan-webapp/src/main/java/org/libreplan/web/email/IEmailTemplateModel.java

@@ -32,7 +32,7 @@ import java.util.List;
  *
  * Created by
  * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
- * on 28.09.15.
+ * on 28.09.2015.
  */
 public interface IEmailTemplateModel {
 

libreplan-webapp/src/main/java/org/libreplan/web/users/IUserModel.java

@@ -34,6 +34,7 @@ import org.libreplan.business.users.entities.UserRole;
  *
  * @author Jacobo Aragunde Perez <jaragunde@igalia.com>
  * @author Manuel Rego Casasnovas <rego@igalia.com>
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
  */
 public interface IUserModel {
 
@@ -134,4 +135,5 @@ public interface IUserModel {
 
     List<Profile> getAllProfiles();
 
+    Number getRowCount();
 }

libreplan-webapp/src/main/java/org/libreplan/web/users/UserCRUDController.java

@@ -32,6 +32,7 @@ import java.util.List;
 import javax.annotation.Resource;
 
 import org.apache.commons.logging.LogFactory;
+import org.libreplan.business.common.entities.Limits;
 import org.libreplan.business.common.exceptions.InstanceNotFoundException;
 import org.libreplan.business.common.exceptions.ValidationException;
 import org.libreplan.business.resources.entities.Worker;
@@ -40,12 +41,14 @@ import org.libreplan.business.users.entities.User;
 import org.libreplan.business.users.entities.User.UserAuthenticationType;
 import org.libreplan.business.users.entities.UserRole;
 import org.libreplan.web.common.BaseCRUDController;
+import org.libreplan.web.common.ILimitsModel;
 import org.libreplan.web.common.Util;
 import org.libreplan.web.common.entrypoints.EntryPointsHandler;
 import org.libreplan.web.common.entrypoints.IURLHandlerRegistry;
 import org.libreplan.web.resources.worker.IWorkerCRUDControllerEntryPoints;
 import org.libreplan.web.security.SecurityUtils;
 import org.libreplan.web.users.bootstrap.PredefinedUsers;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.zkoss.zk.ui.Component;
 import org.zkoss.zk.ui.WrongValueException;
 import org.zkoss.zk.ui.event.Event;
@@ -67,6 +70,7 @@ import org.zkoss.zul.api.Groupbox;
  * @author Jacobo Aragunde Perez <jaragunde@igalia.com>
  * @author Manuel Rego Casasnovas <rego@igalia.com>
  * @author Javier Moran Rua <jmoran@igalia.com>
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
  */
 @SuppressWarnings("serial")
 public class UserCRUDController extends BaseCRUDController<User> implements
@@ -77,6 +81,10 @@ public class UserCRUDController extends BaseCRUDController<User> implements
     @Resource
     private IWorkerCRUDControllerEntryPoints workerCRUD;
 
+    @Autowired
+    private ILimitsModel limitsModel;
+
+    @Autowired
     private IUserModel userModel;
 
     private Textbox passwordBox;
@@ -491,4 +499,11 @@ public class UserCRUDController extends BaseCRUDController<User> implements
         }
     }
 
+    public boolean isCreateButtonDisabled(){
+        Limits usersTypeLimit = limitsModel.getUsersType();
+        Long usersCount = (Long) userModel.getRowCount();
+        if (usersTypeLimit != null)
+            if ( usersCount >= usersTypeLimit.getValue() ) return true;
+        return false;
+    }
 }

libreplan-webapp/src/main/java/org/libreplan/web/users/UserModel.java

@@ -50,6 +50,7 @@ import org.springframework.transaction.annotation.Transactional;
  * @author Jacobo Aragunde Perez <jaragunde@igalia.com>
  * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
  * @author Manuel Rego Casasnovas <rego@igalia.com>
+ * @author Vova Perebykivskiy <vova@libreplan-enterprise.com>
  */
 @Service
 @Scope(BeanDefinition.SCOPE_PROTOTYPE)
@@ -275,4 +276,11 @@ public class UserModel implements IUserModel {
         return profileDAO.listSorted();
     }
 
+
+    @Override
+    @Transactional(readOnly = true)
+    public Number getRowCount() {
+        return userDAO.getRowCount();
+    }
+
 }

libreplan-webapp/src/main/webapp/users/_listUsers.zul

@@ -35,6 +35,7 @@
         </columns>
     </newdatasortablegrid>
     <button id="show_create_form" onClick="controller.goToCreateForm();"
-        label="${i18n:_('Create')}" sclass="create-button global-action" >
+        label="${i18n:_('Create')}" sclass="create-button global-action"
+        disabled="@{controller.isCreateButtonDisabled}">
     </button>
 </window>